The Canadian Nuclear Safety Commission (CNSC) is the federal regulator mandated to protect the health and safety of persons and the environment and to ensure national security from risks associated with the use of nuclear energy and nuclear material.

Nuclear power plants require specific approvals for all stages from site selection to decommissioning. An extensive Safety Report is required before construction can begin. CNSC staff conduct inspections during construction and throughout the operating life. Members of the CNSC, located at each site, monitor operations on a day-to-day basis.